• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.505-508
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• 2009

우리나라의 병원급 이상 의료기관을 이용한 입원환자의 지역별 의료이용의 변이와 의료자원의 공급, 도시규모, 소득수준이 지역별 의료 이용의 변이에 미치는 영향을 살펴보기 위해 연구를 수행하였다. 본 연구에서는 이를 위해 2005년 환자조사 자료를 이용하였다. 지역별 의료이용의 변이에 성, 연령과 같은 지역별 인구구조의 차이에 의한 효과는 직접표준화 방법을 이용하여 보정한 다음 지역별 의료이용의 변이 정도를 파악하였다. 연구결과 병원급 이상 의료기관을 이용한 입원환자의 표준화 퇴원율과 표준화 재원일수는 차이가 있었다. 표준화 퇴원율에 영향을 미치는 요인으로는 도시규모, 인구10만명당 병상수가 주요 요인으로 나타났다.

• Survey Research
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• v.4 no.1
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• pp.73-94
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• 2003

The aim of this study was ti investigate the effects if socio-demographic factors, oral symptoms and oral health behaviors on dental caries. The multiple logistic regression was executed on oral health examination records and the information among all civil servants obtained by the National Health Insurance Corporation(NHC). After abjusting known risk factors, the most significant variable was income(OR=1.97). This cross-sectional study revealed various significant factors related to dental caries.

• Environmental and Resource Economics Review
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• v.24 no.2
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• pp.365-410
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• 2015

Block-rate structures are widely used in utility-pricing, including the Korean residential electricity sector. In the case of the current pricing structure, Korean citizens are highly concerned about incurring excessive electricity costs. For these reasons, there have been many discussions concerning mitigation of the strict pricing structure. Existing studies on the residential electricity demand function under block-rate structure have the following three issues - the consumer's budget constraint is non-linear, perceived price under block-rate structure is uncertain, block-rate structure has endogeneity in the price variable. In this context, this paper estimates the residential electricity demand function using micro-level household expenditure data and simulates the impact of alternative block-pricing schedules.

• Journal of Nutrition and Health
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• v.53 no.2
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• pp.155-174
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• 2020

Purpose: The purpose of this study was to investigate the effects of nutrient intake and dietary diversity score (DDS) on osteoporosis after controlling for sex, age, socioeconomic level, drinking, smoking, physical activity, and body mass index (BMI) as mediators using the 2015-2017 Korean National Health and Nutrition Examination Survey (KNHANES) data. Methods: This study was focused on the age group of 50s and older by using the 2015-2017 KNHANES data. Subjects diagnosed with osteoporosis were classified as the osteoporosis group, and the other subjects were classified as the normal group. Logistic regression was used to assess the association between nutrient intake and DDS after controlling for mediators. Results: The risk of osteoporosis was 2.38 times lower in the 50-65 age group than in the 75 years and older group. The mediators affecting the incidence of osteoporosis by age group were sex, age, household income level, and education level in the 50-64 age group; sex, education level, drinking, and BMI in the 65-74 age group; and sex, age, current smoking, drinking, BMI, and energy intake in the 75 years and older group. The effect of nutrient intake on osteoporosis, with the exception of vitamin B1, was fully mediated by these mediators. The effect of vitamin B1 was partially mediated by mediators in the age group of 65-74 years, and vitamin B1 was effective for preventing the risk of osteoporosis by 25% when consumed over EAR. The effect of DDS was partially mediated in the age group of 75 years and older, and DDS of 2 or less increased the risk of osteoporosis by 2.59 times. Conclusion: As a result of this study, it is necessary to recommend the balanced intake of various foods including grains, meat·fish·legumes, vegetables, fruits, and dairy products as dietary guidelines for the prevention of osteoporosis and promotion of bone health in the elderly.